Finding the Fourth Proportional to 21,683.00, 29,922.59 and 12,123.23

Step by Step Solution

1. Step 1: Write the proportion equation
   21,683.00 : 29,922.59 = 12,123.23 : x
2. Step 2: Convert to fraction form
   21,683.00/29,922.59 = 12,123.23/x
3. Step 3: Cross multiply
   21,683.00x = 29,922.59 × 12,123.23
4. Step 4: Simplify right side
   21,683.00x = 362,758,371.52
5. Step 5: Solve for x
   x = 362,758,371.52/21,683.00
6. Step 6: Final answer
   x = 16,730.08